Geodesic
Auctions with Untrustworthy Bidders
Serdica Journal of Computing, Tome 1 (2007) no. 3, pp. 293-312 Cet article a éte moissonné depuis la source Bulgarian Digital Mathematics Library

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The paper analyzes auctions which are not completely enforceable. In such auctions, economic agents may fail to carry out their obligations, and parties involved cannot rely on external enforcement or control mechanisms for backing up a transaction. We propose two mechanisms that make bidders directly or indirectly reveal their trustworthiness. The first mechanism is based on discriminating bidding schedules that separate trustworthy from untrustworthy bidders. The second mechanism is a generalization of the Vickrey auction to the case of untrustworthy bidders. We prove that, if the winner is considered to have the trustworthiness of the second-highest bidder, truthfully declaring one's trustworthiness becomes a dominant strategy. We expect the proposed mechanisms to reduce the cost of trust management and to help agent designers avoid many market failures caused by lack of trust.
Keywords: Auctions, E-commerce, Mechanism Design, Trust 
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     author = {Braynov, Sviatoslav and Pavlov, Radoslav},
     title = {Auctions with {Untrustworthy} {Bidders}},
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Braynov, Sviatoslav; Pavlov, Radoslav. Auctions with Untrustworthy Bidders. Serdica Journal of Computing, Tome 1 (2007) no. 3, pp. 293-312. http://geodesic.mathdoc.fr/item/SJC_2007_1_3_a5/